Just took him out handily with my strange Mega Ranged Mix team. No loss, impossible of course.

Took him in about 11 rounds, level 41.
That said, I have to comment that the game seems a LOT easier wth the gift mod items than without.
Paladins, Elves, Hunters, Bowmen, and Goblins. Yes, I said Goblins, because we all know Goblins eat Gremlins for breakfast.

Jokes aside, the longer a battle lasts and as long as the stack is alive, the goblin ends up doing more and more damage over time thanks to its Zeroing In Skill.
I got pretty lucky with my items and I am using Trigger as my companion. Telescopic, Black Band (gift mod item).
My net criticals end up being
Hunter 100%, Elf 99%, Goblin 64% critical
I also got enough magic resistance items to get me to 95% resists, but I probably could withstand a battle with a little less.
I take out his towers as they come up, and he can't stop the steady blast of 4-5K dmg per stack against the Zig himself. About 7-8K dmg per hit against the towers. No cannoneers either, but they are pretty bad for damage per leadership.